If you google it it appears to be Christchurch School- I think this was a bombsite and the school rebuilt? However the first of the two houses just beyond this used to be some kind of works yard before another house was built on it. Its odd as the even numbers were generally on the other side of the road- I used to live in a house further down.

Try contacting someone called Steve Grindlay who posts here and on the Sydenham Society websites.